Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:18:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<g[nod].size();i++) ^ user.cpp: In function ‘void dfs1(int)’: user.cpp:26:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<gr[nod].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:61:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (k=0;k<Cp[i].size() && !gasit;k++) ^ user.cpp:62:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (l=0;l<Cp[j].size() && !gasit;l++) ^